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In order to enhance continuous-running efficiency,a special centralizer was developed and eliminated the tie back sting,and one trip was needed for the performance of sand washing by slim pipe.

为提高作业时效,成功研发了一种新型套管丢手内专用冲砂扶正工具,其省略了回接管柱,直接在大套管内下入小油管就可准确进入丢手内冲砂。

In view of the shortcoming of sand washing technology with recycled water, the negative-pressure sand fishing technology is put forward.

针对循环水冲砂工艺存在的不足,提出了负压捞砂工艺技术。

Foam fluid is widely used in sand-flushing operations in oilfields, while the prop-carrying capability of foam fluid is very important.

泡沫流体广泛应用于油井的冲砂洗井作业中,携砂能力是衡量其性能的一项重要指标。

Development and application of reversing continuous sand washing device inside the casing;

套管内换向连续冲砂装置的研制与应用

A continuous sand washing apparatus and sand control unit are used in operation, by which stack accidents can be effectively avoided, the pollution in sand washing operation is solved and sand washing efficiency is raised.

在施工过程中通过采用连续冲砂装置及冲砂液除砂装置,可有效地避免卡井事故的发生,解决了冲砂作业的污染问题,并提高了冲砂效率。